Title:
角度センサ
Document Type and Number:
Japanese Patent JP4007313
Kind Code:
B2
Abstract:
An angle sensor includes a magnet fixed to a rotational shaft and a Hall device disposed at neutral detection position C such that it faces the magnet, thereby detecting the rotational angle of the magnet based on an output of the Hall device. A magnetic member is attached to each of the magnetic poles of the magnet so that the maximum magnetic flux portions are away from the neutral detection position C in the circumferential direction of the shaft, thereby allowing the magnetic flux distribution to be biased to the direction opposite from the Hall device.
Inventors:
Takeo Okubo
Application Number:
JP2003383809A
Publication Date:
November 14, 2007
Filing Date:
November 13, 2003
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
G01B7/00; G01B7/30; G01D5/12; G01D5/14; G01D5/16
Domestic Patent References:
| JP4747614B1 | ||||
| JP6147815A | ||||
| JP2000121309A |
Attorney, Agent or Firm:
Takeichi Morishita